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(parent: ba78e2d) | patch
net: disable preemption before call smp_processor_id()
authorChangli Gao <xiaosuo@gmail.com>
Sun, 8 Aug 2010 03:35:43 +0000 (20:35 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 8 Aug 2010 03:35:43 +0000 (20:35 -0700)
commitcece1945bffcf1a823cdfa36669beae118419351
treea3bd2c2a1953624b710524f56d98d7b1496f60a6tree | snapshot (tar.gz zip)
parentba78e2ddca844598c0efcbf2c76d73519a61b902commit | diff
net: disable preemption before call smp_processor_id()

Although netif_rx() isn't expected to be called in process context with
preemption enabled, it'd better handle this case. And this is why get_cpu()
is used in the non-RPS #ifdef branch. If tree RCU is selected,
rcu_read_lock() won't disable preemption, so preempt_disable() should be
called explictly.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/dev.c diff | blob | blame | history